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Evaluation of the relationship between effervescent paracetamol and blood pressure: clinical trial

M. Benítez-Camps, E. Vinyoles-Bargalló, Oriol Rebagliato-Nadal, R. Morros-Pedros, Helena Pera-Pujadas, A. Dalfó-Baqué, Ignacio López-Pavón, Carlos Roca-Sánchez et al.

BMC Cardiovascular Disorders, 2015

85 participants · 5 citations

Abstract

BackgroundParacetamol’s solubility is achieved by adding to the excipient sodium salts, either as bicarbonate, carbonate or citrate. As the relationship between salt and hypertension is well known, due to the sodium content it has raised a hypothesis that may interfere with the control of that risk factor.Therefore, the objective of this study is to evaluate the effect on blood pressure of effervescent paracetamol compared to non-effervescent, in hypertensive patients.Methods/DesignThis is the protocol of a phase IV multicenter clinical trial, randomized, controlled, crossover, open, which will compare the effect of two different formulations of paracetamol (effervescent or non-effervescent) in the blood pressure of hypertensive patients, with a seven weeks follow up.49 controlled hypertensive patients will be included (clinical BP lower than 150 and 95 mmHg, and lower than 135 mmHg and 85 mmHg in patients with diabetes or a history of cardiovascular event, and daytime ambulatory measurements lower than 140 and 90 mmHg) and mild to moderate pain (Visual Analog Scale between 1 and 4).The study was approved by the ethics committee of the Fundació Jordi Gol i Gurina and following standards of good clinical practice.The primary endpoint will be the variations in systolic BP in 24 h Ambulatory Blood Pressure Monitoring, considering significant differences 2 or more mmHg among those treated with non-effervescent and effervescent formulations.Intention-to-treat and per-protocol…

How strong is the evidence?

Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 85 participants or records.

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